<template>
    <div>
        <!-- 面包屑导航 -->
        <el-breadcrumb separator-class="el-icon-arrow-right">
  <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
  <el-breadcrumb-item>用户管理</el-breadcrumb-item>
  <el-breadcrumb-item>用户列表</el-breadcrumb-item>
</el-breadcrumb>

<!-- 卡片视图 -->
<el-card class="box-card">
    <!-- 搜索与添加区域 -->
    
  <el-row :gutter="20">
    <el-col :span="8">
        <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getUserList">
    <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
  </el-input>
    </el-col>
    <el-col :span="4">
        <el-button type="primary" @click="addDialogVisible = true">添加用户</el-button>
    </el-col>
  </el-row>

  <!-- 用户列表区 -->
  <el-table :data="userlist" border stripe>
    <el-table-column type="index"></el-table-column>
    <el-table-column label="姓名" prop="username"></el-table-column>
    <el-table-column label="邮箱" prop="email"></el-table-column>
    <el-table-column label="电话" prop="mobile"></el-table-column>
    <el-table-column label="角色" prop="role_name"></el-table-column>
    <el-table-column label="状态" prop="mg_state">
        <template slot-scope="scope">
            <el-switch v-model="scope.row.mg_state" @change="userStateChanged(scope.row.id)">
</el-switch>
        </template>
    </el-table-column>
    <el-table-column label="操作" >
        <template slot-scope="scope">
            <!-- 修改按钮 -->
            <el-button type="primary" icon="el-icon-edit" size="mini" @click="showEditDialog(scope.row.id)"></el-button>
            <!-- 删除按钮 -->
            <el-button type="danger" icon="el-icon-delete" size="mini" @click="removeUserById(scope.row.id)"></el-button>
            <!-- 分配角色按钮 -->
            <el-tooltip class="item" effect="dark" content="分配角色" placement="top" :enterable="false">
                <el-button type="warning" icon="el-icon-setting" size="mini" @click="setRole(scope.row)"></el-button>
            </el-tooltip>         
        </template>
    </el-table-column>
  </el-table>
  <!-- 分页区域 -->
  <el-pagination
      @size-change="handleSizeChange"
      @current-change="handleCurrentChange"
      :current-page="queryInfo.pagenum"
      :page-sizes="[1, 2, 5, 10]"
      :page-size="queryInfo.pagesize"
      layout="total, sizes, prev, pager, next, jumper"
      :total="total">
    </el-pagination>
</el-card>

<!-- 添加用户的对话框 -->
<el-dialog
  title="提示"
  :visible.sync="addDialogVisible"
  width="50%" @close="addDialogClosed">
  <!-- 内容主题区 -->
  <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="70px">
  <el-form-item label="用户名" prop="username">
    <el-input v-model="addForm.username"></el-input>
  </el-form-item>
  <el-form-item label="密码" prop="password">
    <el-input v-model="addForm.password"></el-input>
  </el-form-item>
  <el-form-item label="邮箱" prop="email">
    <el-input v-model="addForm.email"></el-input>
  </el-form-item>
  <el-form-item label="手机" prop="mobile">
    <el-input v-model="addForm.mobile"></el-input>
  </el-form-item>
  </el-form>
  
  <!-- 底部区域 -->
  <span slot="footer" class="dialog-footer">
    <el-button @click="addDialogVisible = false">取 消</el-button>
    <el-button type="primary" @click="addUser">确 定</el-button>
  </span>
</el-dialog>
  <!-- 修改用户的对话款 -->
<el-dialog
  title="修改用户"
  :visible.sync="editDialogVisible"
  width="50%" @close="editDialogClosed">
  <el-form ref="editFormRef" :model="editForm" :rules="editFormRules" label-width="70px">
  <el-form-item label="用户名">
    <el-input v-model="editForm.username" disabled></el-input>
  </el-form-item>
  <el-form-item label="邮箱" prop="email">
    <el-input v-model="editForm.email"></el-input>
  </el-form-item>
  <el-form-item label="手机" prop="mobile">
    <el-input v-model="editForm.mobile"></el-input>
  </el-form-item>
  </el-form>
  <span slot="footer" class="dialog-footer">
    <el-button @click="editDialogVisible = false">取 消</el-button>
    <el-button type="primary" @click="editUserInfo">确 定</el-button>
  </span>
</el-dialog>

<!-- 分配角色对话款 -->
<el-dialog
  title="分配角色"
  :visible.sync="setRoleDialogVisible"
  width="50%" @close="setRoleDialogClosed">
  <div>
    <p>当前的用户：{{userInfo.username}}</p>
    <p>当前的角色：{{userInfo.role_name}}</p>
    <p>分配新角色：
      <el-select v-model="selectedRoleId" placeholder="请选择">
    <el-option
      v-for="item in rolesList"
      :key="item.id"
      :label="item.roleName"
      :value="item.id">
    </el-option>
  </el-select>
    </p>
  </div>
  <span slot="footer" class="dialog-footer">
    <el-button @click="setRoleDialogVisible = false">取 消</el-button>
    <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
  </span>
</el-dialog>
  </div>
</template>

<script>
export default{
data(){
    //验证邮箱的规则
  var checkEmail =(rule,value,cb)=>{
    const regEmail = /^([a-zA-Z]|[0-9])(\w|\-)+@[a-zA-Z0-9]+\.([a-zA-Z]{2,4})$/;
    if(regEmail.test(value)){
      return cb()
    }
    cb(new Error('请输入一个合法的邮箱'))
  }
    //验证手机号的规则
  var checkMobile =(rule,value,cb)=>{
    const regMobile = /^(((13[0-9]{1})|(15[0-9]{1})|(16[0-9]{1})|(17[3-8]{1})|(18[0-9]{1})|(19[0-9]{1})|(14[5-7]{1}))+\d{8})$/;
    if(regMobile.test(value)){
      return cb()
    }
    cb(new Error('请输入一个合法的邮箱'))
  }

    return{
        //获取用户列表的参数对象
        queryInfo:{
            query : '',
            pagenum :1,
            pagesize : 2,
            currentPage1: 5,
        currentPage2: 5,
        currentPage3: 5,
        currentPage4: 4
        },
        userlist:[],
        total:0,
        //控制对话款的显示和隐藏
        addDialogVisible: false,

        //添加用户的表单
        addForm:{
          username:'',
          password:'',
          email:'',
          mobile:''
        },
        //添加表单的验证规则
        addFormRules:  {
          username:[
            {required:true,message:'请输入用户名',trigger:'blur'},
            {min:3,max:10,message:'请用户名的长度在3~10个字符之间',trigger:'blur'}
          ],

          password:  [
          {required:true,message:'请输入密码',trigger:'blur'},
            {min:6,max:15,message:'请密码的长度在6~15个字符之间',trigger:'blur'}
        ],

        email:
        [
        {required:true,message:'请输入邮箱',trigger:'blur'},
        {validator:checkEmail, trigger:'blur'}
        ],
        mobile:  [
        {required:true,message:'请输入手机号',trigger:'blur'},
        {validator:checkMobile, trigger:'blur'}
        ]
        },   
        
        //控制修改用户的对话款的显示
        editDialogVisible:false,

        //查询到的用户信息对象
        editForm:{},

        //修改表单的验证规则对象
        editFormRules:{
        email:
        [
        {required:true,message:'请输入用户邮箱',trigger:'blur'},
        {validator:checkEmail, trigger:'blur'}
        ],
           mobile:  [
        {required:true,message:'请输入用户手机号',trigger:'blur'},
        {validator:checkMobile, trigger:'blur'}
        ]
        },
        //控制对话款的显示和隐藏
        setRoleDialogVisible:false,
        //需要被分配权限的用户信息
        userInfo:{},
        //所有角色的数据列表
        rolesList:[],
        //已选中的角色id值
        selectedRoleId:''

    }
},
created(){
    this.getUserList()
},
methods:{
    handleSizeChange(val) {
        console.log(`每页 ${val} 条`);
        this.queryInfo.pagesize = val
        this.getUserList()
      },
      handleCurrentChange(val) {
        console.log(`当前页: ${val}`);
        this.queryInfo.pagenum= val
        this.getUserList()
      },

    async getUserList(){
      const {data:res} = await this.$http.get('users',{params:this.queryInfo})
      if(res.meta.status !=200) {return this.$message.error('获取用户列表失败')}
      this.userlist = res.data.users
      this.total = res.data.total
      console.log(res)
    },
    //监听Switch开关状态的改变
    async userStateChanged(userinfo){
        console.log(userinfo)
      const {data:res}= await  this.$http.put(`users/${userinfo.id}/state/${userinfo.mg_state}`)
      if(res.meta.status !=200){

        userinfo.mg_state = !userinfo.mg_state
        return this.$message.error('更新用户状态失败')
      }
      this.$message.success('更新用户状态成功')
    },

    //监听添加对话款的关闭事件
    addDialogClosed(){
      this.$refs.addFormRef.resetFields()
    },
    //点击按钮添加新用户
    addUser(){
      this.$refs.addFormRef.validate(async valid=>{
        if(!valid)return
        //可以发起添加用户的网络请求
        const {data:res} =await this.$http.post('users',this.addForm)
        if(res.meta.status !==201){
          this.$message.error('添加用户失败')
        }

        this.$message.success('添加用户成功')
        //隐藏添加用户的对话框
        this.addDialogVisible =false
        //重新获取用户的数据
        this.getUserList()
      })
    },
    //展示编辑的对话框
    async showEditDialog(id) {
      // console.log(id)
      const { data: res } = await this.$http.get('users/' + id)

      if (res.meta.status !== 200) {
        return this.$message.error('查询用户信息失败！')
      }

      this.editForm = res.data
      this.editDialogVisible = true
    },

    //监听修改用户的对话款关闭事件
    editDialogClosed(){
      this.$refs.editFormRef.resetFields()
    },
    //修改用户信息并提交
    editUserInfo(){
      this.$refs.editFormRef.validate(async valid=>{
        if(!valid)return
        //发起修改用户信息的数据请求
        const{data:res}=await this.$http.put('users/'+this.editForm.id,{
          email:this.editForm.email,
          mobile: this.editForm.mobile
        })

        if(res.meta.status !==200){
          return this.$message.error('更新用户失败')
        }

        //关闭对话框
        this.editDialogVisible =false
        //刷新数据列表
        this.getUserList()
        //提示修改成功
        this.$message.success('更新用户信息成功')
      })
    },

//根据id删除用户
 async removeUserById(id){
  // console.log(id)
  const confirmResult = await this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }).catch(err => err)

        //如果用户确认  返回confirm
        //如果用户取消删除，返回cancel
        // console.log(confirmResult)
        if(confirmResult !== 'confirm'){
          return this.$message.info('已取消删除')
        }
      const{data: res} =await this.$http.delete('users/'+ id)
      if(res.meta.status !==200){
        return this.$message.error('删除用户失败')
      }
      this.$message.success('删除用户成功')
      this.getUserList()
},
//展示分配角色的对话框
async setRole(userInfo){
  this.userInfo = userInfo

  //在展示对话框之前，获取所有角色的列表
const{data:res}=await this.$http.get('roles')
if(res.meta.status !==200){
  return this.$message.error('获取角色失败')
}
this.rolesList =res.data

this.setRoleDialogVisible=true
},
//点击确定按钮分配角色
async saveRoleInfo(){
 if(!this.selectedRoleId){
  return this.$message.error('请选择要分配的角色')
 }

 const{data:res}=await this.$http.put(`users/${this.userInfo.id}/role`
 ,{rid:this.selectedRoleId})

 if(res.meta.status !==200){
  return this.$message.error('更新角色失败')
 }

 this.$message.success('更新角色成功')
 this.getUserList()
 this.setRoleDialogVisible =false
},
//监听分配角色对话框的关闭事件
setRoleDialogClosed(){
  this.selectedRoleId = ''
  this.userInfo={}
}
}
}
</script>

<style lang="less" scoped>
  
</style>
